1/* tc-microblaze.h -- Header file for tc-microblaze.c.
2
3   Copyright (C) 2009-2020 Free Software Foundation, Inc.
4
5   This file is part of GAS, the GNU Assembler.
6
7   GAS is free software; you can redistribute it and/or modify
8   it under the terms of the GNU General Public License as published by
9   the Free Software Foundation; either version 3, or (at your option)
10   any later version.
11
12   GAS is distributed in the hope that it will be useful,
13   but WITHOUT ANY WARRANTY; without even the implied warranty of
14   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
15   GNU General Public License for more details.
16
17   You should have received a copy of the GNU General Public License
18   along with GAS; see the file COPYING.  If not, write to the Free
19   Software Foundation, 51 Franklin Street - Fifth Floor, Boston, MA
20   02110-1301, USA.  */
21
22#ifndef	TC_MICROBLAZE
23#define TC_MICROBLAZE 1
24
25#define TARGET_ARCH	bfd_arch_microblaze
26#ifndef TARGET_BYTES_BIG_ENDIAN
27/* Used to initialise target_big_endian.  */
28#define TARGET_BYTES_BIG_ENDIAN 1
29#endif
30
31#define IGNORE_NONSTANDARD_ESCAPES
32
33#define TC_RELOC_MANGLE(a,b,c) tc_reloc_mangle (a, b, c)
34
35/* We need to handle expressions of type "symbol op symbol" and create
36   relocs for such expressions as -relax in linker can change the value
37   of such expressions */
38#define TC_CONS_FIX_NEW cons_fix_new_microblaze
39#define TC_PARSE_CONS_EXPRESSION(EXP, NBYTES) \
40  parse_cons_expression_microblaze (EXP, NBYTES)
41extern bfd_reloc_code_real_type parse_cons_expression_microblaze
42  (expressionS *, int);
43
44#define TC_FORCE_RELOCATION_SECTION(FIXP,SEG) 1
45#define UNDEFINED_DIFFERENCE_OK 1
46
47#define TC_FORCE_RELOCATION_LOCAL(FIX)				\
48  (GENERIC_FORCE_RELOCATION_LOCAL (FIX)				\
49   || (FIX)->fx_r_type == BFD_RELOC_MICROBLAZE_64_GOT		\
50   || (FIX)->fx_r_type == BFD_RELOC_MICROBLAZE_64_PLT		\
51   || (FIX)->fx_r_type == BFD_RELOC_MICROBLAZE_64_GOTOFF	\
52   || (FIX)->fx_r_type == BFD_RELOC_MICROBLAZE_32_GOTOFF)
53
54#define tc_fix_adjustable(X)  tc_microblaze_fix_adjustable(X)
55extern int tc_microblaze_fix_adjustable (struct fix *);
56
57extern const struct relax_type md_relax_table[];
58#define TC_GENERIC_RELAX_TABLE md_relax_table
59
60/* We don't need to handle .word strangely.  */
61#define WORKING_DOT_WORD
62
63#define LISTING_HEADER        	"Xilinx MicroBlaze GAS Listing"
64#define LISTING_LHS_CONT_LINES	4
65
66#define NEED_FX_R_TYPE	1
67
68/* We want local label support.  */
69#define LOCAL_LABELS_FB 1
70
71/* Want the section information too... */
72#define MD_PCREL_FROM_SECTION(FIXP, SEC) md_pcrel_from_section (FIXP, SEC)
73
74#define MD_APPLY_FIX3  /* We want the segment as well.  */
75
76/* We set the fx_done field appropriately in md_apply_fix.  */
77#define TC_HANDLES_FX_DONE
78
79#ifdef OBJ_ELF
80
81#define TARGET_FORMAT (target_big_endian ? "elf32-microblaze" : "elf32-microblazeel")
82
83#define ELF_TC_SPECIAL_SECTIONS \
84  { ".sdata",		SHT_PROGBITS,	SHF_ALLOC + SHF_WRITE }, \
85  { ".sbss",		SHT_NOBITS,	SHF_ALLOC + SHF_WRITE }, \
86  { ".sdata2",		SHT_PROGBITS,	SHF_ALLOC }, \
87  { ".sbss2",		SHT_PROGBITS,	SHF_ALLOC }, \
88/* Other special sections not generated by the assembler: .reginfo,
89   .liblist, .conflict, .gptab, .got, .dynamic, .rel.dyn.  */
90
91#endif /* OBJ_ELF */
92
93#ifndef TARGET_FORMAT
94# error No target format specified.
95#endif
96
97#include "write.h"        /* For definition of fixS */
98
99extern void      md_begin            (void);
100extern void      md_assemble         (char *);
101extern symbolS * md_undefined_symbol (char *);
102extern void      md_show_usage       (FILE *);
103extern void      md_convert_frag               (bfd *, segT, fragS *);
104extern void      md_operand                    (expressionS *);
105extern int       md_estimate_size_before_relax (fragS *, segT);
106extern void      md_number_to_chars            (char *, valueT, int);
107extern valueT    md_section_align              (segT, valueT);
108extern long      md_pcrel_from_section         (fixS *, segT);
109extern arelent * tc_gen_reloc                  (asection *, fixS *);
110extern void 	 cons_fix_new_microblaze       (fragS *, int, int,
111						expressionS *,
112						bfd_reloc_code_real_type);
113extern void 	 md_apply_fix3 		       (fixS *, valueT *, segT);
114
115#define EXTERN_FORCE_RELOC -1
116
117#endif /* TC_MICROBLAZE */
118